Remission of nephrotic membranous glomerulonephritis after high-dose trimethoprim-sulfamethoxazole treatment for Pneumocystis jiroveci pneumonia

Abstract Background More accounts of opportunistic infection in COVID-19 patients are emerging. At our institution, we identified 2 COVID-19 patients with Pneumocystis jiroveci pneumonia (PJP) opportunistic infection. This prompted a review of the literature to identify trends in patient characteristics, risk factors, and outcomes in this population. Methods A literature review was conducted using PubMed that identified 13 other patients with both COVID-19 and PJP infection. Age, gender, human immunodeficiency virus (HIV) status, other immunocompromised states, time between COVID-19 and PJP diagnosis, and clinical outcomes were captured for analysis. Results Eleven patients were male. The average age was 56 years. All but 2 patients were immunocompromised. At time of PJP diagnosis, seven patients had newly diagnosed HIV and one had known, well-controlled HIV. One patient had rheumatoid arthritis receiving leflunomide, 1 had ulcerative colitis receiving budesonide and sulfasalazine, 2 patients had multiple myeloma whereby both were on lenalidomide, 1 patient was a renal transplant recipient immunosuppressed on tacrolimus, mycophenolate, and methylprednisolone, and 1 patient had chronic lymphocytic leukemia getting fludarabine, cyclophosphamide, and rituximab. Nine patients had positive COVID-19 and PJP tests performed within 7 days of one another. One patient tested positive for PJP 54 days into admission for COVID-19. This patient received high dose steroids and tocilizumab for initial COVID-19 infection. Three patients were re-hospitalized with PJP after a recent admission for COVID-19 pneumonia, with a mean time to readmission of 25 days. One of these 3 patients had no treatment for COVID-19, while 2 received steroids. Five of the total 15 patients (33%) died. Conclusion COVID-19 treatments with high dose steroids and tocilizumab can make patients vulnerable for opportunistic infection with PJP. Furthermore, COVID-19 is known to cause lymphopenia which may further increase this risk. A diagnosis of concomitant PJP can be especially challenging due to nearly identical radiographical findings. Serum beta-D glucan and HIV testing can be especially helpful in this situation, and there should be a low threshold for performing bronchoalveolar lavage. Disclosures All Authors: No reported disclosures

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Pneumocystis jiroveci pneumonia during first and second-line chemotherapy for solid tumours.

Journal of Clinical Oncology ◽

10.1200/jco.2019.37.15_suppl.e18330 ◽

2019 ◽

Vol 37 (15_suppl) ◽

pp. e18330-e18330

Author(s):

Emma Shaughnessy ◽

Kevin Armstrong ◽

Madeline Rogers-Seeley ◽

Adarsh Das ◽

Domenic Higgs ◽

...

Keyword(s):

Reference Range ◽

Cd4 Count ◽

Solid Tumours ◽

High Dose ◽

Second Line ◽

First Line ◽

Pneumocystis Jiroveci ◽

Second Line Chemotherapy ◽

Pneumocystis Jiroveci Pneumonia ◽

Line Chemotherapy

e18330 Background: Pneumocystis jiroveci pneumonia (PJP) is an opportunistic fungal infection, historically associated with individuals with advanced immunodeficiency, sustained temozolamide chemotherapy and in those who have undergone multiple lines of chemotherapy. PJP is now increasingly being recognised in patients undergoing first-line chemotherapy. This is a retrospective study of ten cases of PJP at our institution amongst patients undergoing first or second-line chemotherapy for solid tumours. Methods: An electronic database search was conducted, looking at cases of PJP diagnosed in our institution over a five year period. Ten patients with a history of PJP were identified. These patients’ pharmacy records, pathology, imaging and laboratory results were examined. Results: All identified patients developed PJP whilst undergoing first-line (70%) or second-line (30%) chemotherapy for solid tumours. These included metastatic cancers such as: pancreatic adenocarcinoma (50%), lung cancer (20%), prostate adenocarcinoma (10%), gastric adenocarcinoma (10%); and colon adenocarcinoma (10%). Eight of ten patients were lymphopenic, with lymphocytes counts of 0.1 - 0.5 (reference range 1.0 - 4.0 x 109/L). One patient had a recorded CD4 count of 114 (reference range 500-1500). On the basis of clinical context, ground-glass changes on CT and/or a positive sputum PCR for PJP, each patient was treated with intravenous high-dose trimethoprim/sulfamethoxazole until they were clinically stable. Patients were then switched on to a life-long prophylactic dose. Four patients required intensive care for management of respiratory failure. Nine out of ten patients recovered well without any long-term sequelae and one patient died. Conclusions: PJP is being diagnosed more frequently than previously thought in those receiving first and second-line chemotherapy. Limited research has been conducted into the potential benefit of prescribing trimethoprim/sulfamethoxazole prophylaxis to patients commencing chemotherapy. Monitoring of CD4 count prior to each chemotherapy cycle could provide guidance to oncologists regarding when to commence prophylactic treatment as a means to reducing patients diagnosed with PJP.

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